نتایج جستجو برای: trans sabinyl acetate

تعداد نتایج: 114785  

Journal: :Molecular and cellular biology 1987
P Angel I Baumann B Stein H Delius H J Rahmsdorf P Herrlich

Genomic clones coding for human fibroblast collagenase were isolated. By constructing and transfecting mutants with 5' and 3' deletion mutations of the 5' control region of the gene into human or murine cells, we delimited a 32-base-pair sequence at positions -73 to -42 which is required for the induction of transcription by the tumor promoter 12-O-tetradecanoyl-phorbol-13-acetate. The DNA elem...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
hamid golchoubian atie shirvan

a binuclear macrocyclic ligand containing dissimilar n(amine)2o2 and n(imine)2o2 coordination sites sharing two phenolic oxygen atoms, was prepared by cyclic condensation of dialdehyde precursor l1h2 with 1,3-diaminopropane. the ligand includes two propionitrile pendant arms on the amine nitrogen atoms. the homobimetallic complex [znl2zn(oac)]pf6 was synthesized by one step procedure. heterobim...

Journal: :Brain research 1988
R De Jong J H Visser

Responses of antennal olfactory receptors of the Colorado potato beetle (Leptinotarsa decemlineata Say) to stimulation with 5 general green odour components, i.e. cis-3-hexen-1-ol, trans-2-hexenal, cis-3-hexenyl acetate, trans-2-hexen-1-ol and 1-hexanol, were recorded extracellularly. Response spectra derived from these recordings cannot be classified into distinct reaction types. The spectra o...

Journal: :The Journal of organic chemistry 2003
Marco Schaudt Siegfried Blechert

The first total synthesis of (+)-astrophylline (2) has been achieved, starting from readily available enantiomerically pure (+)-(1R,4S)-4-hydroxycyclopent-2-enyl acetate (11). A novel ruthenium-catalyzed ring-closing ring-opening ring-closing metathesis of carbocyclic olefins of general type 5 was the key step, providing the stereochemically well-defined bis-piperidyl skeleton of the target mol...

Journal: :Chemical & pharmaceutical bulletin 2008
Takahiro Miyake Keisuke Uda Masako Kinoshita Mikio Fujii Hiroyuki Akita

Total syntheses of (+)-coronarin A (1), (+)-coronarin E (2), (+)-austrochaparol (3) and (+)-pacovatinin A (4) were achieved from the synthetic (+)-albicanyl acetate (6). Dess-Martin oxidation of (+)-albicanol (5) derived from the chemoenzymatic product (6) gave an aldehyde (7), which was subjected to Julia one-pot olefination using beta-furylmethyl-heteroaromatic sulfones (8 or 9 ) gave (+)-tra...

Journal: :The Journal of general virology 1994
K F Copeland A G Haaksma J Goudsmit J L Heeney

Human Jurkat T cells containing a stably integrated human T cell leukaemia virus type 1 (HTLV-1) long terminal repeat (LTR) reporter gene construct were used to study the role of calcium-dependent cellular activation pathways in LTR trans-activation. Treatment of these cells with the calcium ionophore ionomycin resulted in a reduced basal response of the LTR and reduced responses to 12-O-tetrad...

Journal: :Applied and environmental microbiology 1991
J B Sutherland A L Selby J P Freeman F E Evans C E Cerniglia

The white rot fungus Phanerochaete chrysosporium metabolized phenanthrene when it was grown for 7 days at 37 degrees C in a medium containing malt extract, D-glucose, D-maltose, yeast extract, and Tween 80. After cultures were grown with [9-14C]phenanthrene, radioactive metabolites were extracted from the medium with ethyl acetate, separated by high-performance liquid chromatography, and detect...

Journal: :Dalton transactions 2013
Feng Zheng Alan T Hutton Cornelia G C E van Sittert John R Moss Selwyn F Mapolie

The reaction of cis-[PtCl₂(dmso)] with the salicylaldimine ligand, N-(2-hydroxybenzylidene)-2,6-di-isopropylaniline, LA in the presence of sodium acetate in methanol produced both cis- and trans-[PtClLA(dmso)], 1a and 1b. An analogous reaction for the less bulky ligand, N-(2-hydroxybenzylidene)aniline LB produced only cis-[PtClLB(dmso)], 2. The reactions of these dmso complexes with triphenylph...

2002
Andreas Schieber Michaela Marx Reinhold Carle

A simple method for the simultaneous extraction and HPLC determination of provitamin A and vitamin E derivatives in vitamin supplemented (ATBC) drinks has been developed. The method allowed the complete separation of a-, b-, g-, and d-tocopherol, atocopheryl acetate, all-trans-a-carotene, all-trans-b-carotene, and the 9-cis and 13-cis isomers of b-carotene in less than 50 min. Recovery of analy...

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